Oil-stove.



Patented lan. 9, |900.

@iwf/#0% A J SCHUETT DIL STOVE (Application filed Feb. 26, 189B.)

No. 64I,044.

(No Model.)

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ANTHONY J. SOI-IUETT, OF OIIIOAGO, ILLINOIS.

OIL-ISTOVE.

SPECIFICATION forming part of Letters Patent No. 641,044, dated January9, 1900.

Application filed February 26, 1898. Serial No. 671,842. (No model.)

To @ZZ wil/0717. t may concern:

Be it known that I, ANTHONY J. SCHUETT, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Oil-Stoves, of which thefollowing is a specification.

My invention relates to improvements in stoves adapted to burnhydrocarbon oil, and it relates more especially to oil-burning heating-stoves.

My'invention consists in 4the general construction of the stove andburner, as well as in details of construction and combinations of parts,all as hereinafter set forth and claimed.

In the drawings, Figure l is a broken vertical section of a stoveconstructed with my improvements; Fig. 2, an enlarged vertical secw tionthrough the burner and burner-casing, and Fig. 3 a top plan view of theburner relnoved from its casing.

A is the shell of the stove, provided with an upper door t and a door sat the base. The stove is preferably cylindrical in cross-section andprovided at the top with a cover A.

vIn the cover is a series of draft-openings r,

though, if desired, these openings may be in the body portion of thestove near the cover. In a plane just below the upper door-open ing isan annular shelf q, upon which rests thel burner-casing B, consisting ofa dishshaped casting diminishing somewhat toward the base, and providedwith an outer flange 1J at the top, which rests upon the shelf q, an

inner annular shoulder p', and an annular" series of openings p2 nearits base. The base p3 is fiat and affords a defiectingplate.

B is the burner, formed of lower and upper rings or members um. The ringormember n is provided with a shoulder n to tit upon a shoulder p4 inthe casing, an upwardextending outer circumferential flange n2, providedwith an inner thread, and a smooth and horizontal top surface n3, formedwith annular concentric recesses n4 a5, respectively. The upper ring ormember m is threaded around the circumference to screw into the flangen2 of the lower member and is provided with a flat under surface m' toextend parallel with the surface n3 of the lower member. In the surfacefm.' is an annular recess 'm2, which registers with the recess n4, andextending through the member m to the channel formed by the recesses n4m2 is an oilfeed opening m3, surrounded at its upper side by aninternally-threaded boss 'm4, adapted to receivethe threaded end of anoil-supply pipe Z. The surfaces 'n3 m are ground smooth, so that whenthe upper member mis screwed down the surfaces lit together withsufcient closeness.

inner annular shoulder p' at the top of the casin g B is an annularcovering plate or ring B2, having a central round opening and a seriesof draft-openings i. Resting upon the plate B2 is a damper-plate B3,having a circular flange h on its under side fitting the opening 1l anda series of openings h', which in the turning of the damper may registermore or `less with the openings t" to regulate the draft. The oilsupplypipe Z extends through the covering-plate BZand out through the side ofthe stove above the burner, Where it connects with a suitablehydrocarbon-oilsupply tank. (Not shown.)

On the inner wall of the stove is a shelf q', on which rests astove-lining q2, of fire-clay or other refractory material, extendingupward to the shelf q, and thus surrounding the burner-casing- A2 is theoutlet-flue or stovepipe, which enters near the base of the stove belowthe shelf g and extends downward at the center of the interior of thestove to a point near the base of the latter, as shown.

In operation oil admitted through the pipeZ` ilows into the channel n4'm2, which is shallower at the opening m3 than at the opposite side, asshown. The burner membersm n are adjusted so that the oil will flow indesired quantity from the said channel to the channel n.5, and thencethrough the burner-opening 7o, where it is ignited. Initially some ofthe oil will drop into the base of the burner-casing, and may there belighted with a match, passed through the door t, and dropped through oneof the openings t" into the burner-casin`g. The flame quickly heats theburner members, so that as the oil enters the burner-channe1s itvaporizes and escapes from the burner-open- IOO ing lr. in the form ofhydrocarbon gas, being ignited at the burner-opening. The channels thusform a vaporizing-chamber. Air to supply combustion enters through theopenings r at the top of the stove and passes downward through theopenings at the damper B3. The products of combustion descend from theburner-opening into the casing, and in escaping through the openings p2in the sides of the lower part of the burner-casing play against thestove-lining q2. The hot products of combustion descend along the innerwall of the stove around the flue A2 to the base of the stove, and thereescape through the centrallyplaced mouth of the iiue.

Owing to the fact that the burner members are joined with screw-threadsa very exact adjustment may be made to regulate the size of theburner-opening, and as the hot products of combustion are deflected bythe burn ercasing against the inner wall of the stove at all sides theentire radiating-surface of the stove below the burner is heatedequally, which would not be the case were the mouth of the outlet-flueat one side instead of at the center of the combustion-chamber. On thecover B2 of the burner-casing are lugs or projections 2, usuallyprovided upon burners of this character, and which will afford a supportfor a vessel. If it is desired to heat water or the like, a vesseliilled therewith may be passed through the door t to rest on the lugsi2. On the member m of the burner is a lug m5, to be used as a handle inadjusting the size of the burner-opening.

The burner and draft openings may be readily adjusted to effect the mostperfect combustion. As the hot products of combustion are deflectedagainst the lining q2 the shell will not be injured by the directcontact of the llame, and as the heat descends-along the wall of theshell it keeps the latter hot, none of the heat being wasted by flowingdirectly to and out of the stovepipe.

What I claim as new, and desire to secure by Letters Patent, is-

l. Adowndrafthydrocarbon-stove comprising an outer shell or casingprovided at its top with draft openings or passages for the admission ofair, a hydrocarbon-burner arranged within the said shell or casing andbelow the said draft-openings, a detlector arranged beneath the burner,and a smoke-pipe arranged to receive the fumes of combustion frombeneath the said deflector.

2. In a heating-stove, the combination of the combustion-chamberprovided with an air-inlet opening toward the top, an outletflueextending from the lower central portion ofsaid chamber, ahydrocarbon-burner in the chamber above the mouth of the outlet-flue,the casing of the burner filling the chamber transversely, adjustableair-inlets in the casing above the burner proper, and a deflectorbetween the burner proper and the outletflue operating to direct the hotproducts of combustion against the sides of said chamber,- substantiallyas and for the purpose set forth.

3. In a heating-stove, the combination of the combustion-chamberprovided with an air-inlet opening toward the top, and an outlet-flueextending from the lower portion of said chamber, a shelf in saidchamber above the outlet-flue, a iianged burner-casing supported on theshelf and closing the chamber transversely, a hydrocarbon burner in thecasing, adjustable airinlets in the casing above the burner, outlets inthe casing below the burner and a detlector between the burner and theoutflet-flue operating to direct the hot products of combustion againstthe sides of said chamber, substantially as and for the purposes setforth.

4. In a stove, the combination with the airinlet and the outlet for hotproducts of combustion, of a hydrocarbon-burner, between the said inletand outlet, comprising upper and lower members forming between them anannular vaporizing-chamber and an inner annular bu rner-openin g,themembers being provided with intermeshing screw threads, whereby they areturned one upon the other to regulate the size of the burner-opening,and a hydrocarbon-supply pipe extending to the vaporizing-chamber,substantially as described.

5. In a heating-stove, the combination of the combustion-chamberprovided with an air-inlet opening toward the top, an outletflueextending from the lower central portion of said chamber, a shelf in thecasing, a lining in the casing below the shelf, a burnercasing flangedat its upper end and supported'by the shelf, and having adjustableair-inlets at the top and outlets near the bottom, a hydrocarbon-burnerin the casing between the inlets and outlets, and a deflector below theoutlets operating to direct the hot products of combustion against thelining of the chamber, substantially as and for the purposes set forth.

ANTHONYl J. SCHUETT.

In presence of RICH T. SPENCER, DAN W. LEE.

